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RESEARCH PAPERS: Offshore Mechanics

Some Implications of a Nonlinear Viscoelastic Constitutive Theory Regarding Interrelationships Between Creep and Strength Behavior of Ice at Failure

[+] Author and Article Information
B. D. Harper

Department of Engineering Mechanics, The Ohio State University, Columbus, OH 43210

J. Offshore Mech. Arct. Eng 111(2), 144-148 (May 01, 1989) (5 pages) doi:10.1115/1.3257088 History: Received January 01, 1988; Revised July 27, 1988; Online October 30, 2009

Abstract

This study explores several possibilities for a correspondence in the behavior of ice at failure during uniaxial creep (constant stress) and strength (constant strain rate) experiments. The usual notion of failure in ice is employed (i.e., the occurrence of a minimum strain rate during a creep test and a peak or maximum stress during a strength test), and the behavior at failure is discussed in terms of a recently proposed nonlinear viscoelastic constitutive model for ice. It is demonstrated that no correspondence between creep and strength data can be expected in general; however, several approximate interrelationships do occur for the experimentally motivated special case of a constant (independent of stress and strain rate) failure strain.

Copyright © 1989 by ASME
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